Key parameters at a glance
- A radius of 16.61 Earth radii
- A mass of 184.02 Earth masses
- Surface gravity around 0.67 g
- An orbital period of 5.423 days
- Semi-major axis 0.0604 AU
- Equilibrium temperature 1,350 K (1077 °C)
- Distance from Earth 1,555.43 light-years
- Earth Similarity Index 0.075
- Travel time at Voyager 1 speed 27,430,089 years
TOI-5322 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#128of 1771
top 7.2%
This planet
16.61R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-5322 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 16.61 | 11.21 |
| Mass (M⊕) | 1.00 | 184.02 | 317.83 |
| Density (g/cm³) | 5.51 | 0.22 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.67 | 2.53 |
| Insolation (S⊕) | 1.00 | 554.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 184.023 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 336691874
Gaia DR2
Gaia DR2 2780169409154216448
Gaia DR3
Gaia DR3 2780169409154216448
System
TOI-5322
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.42 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0604 AU.
Transit Fingerprint
Depth
1.086 %
Duration
5.111 h
Impact parameter b
0.120
Transit midpoint (BJD)
2,460,035.2791
Photometric dip
Transit produces a flux drop of 10,860 ppm lasting ≈ 5.11 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
8.910
Impact parameter (b)
0.120
RV semi-amplitude (K)
67.000 m/s
Transit mid-time (BJD)
2,460,035.2791
Angular separation (arcsec)
0.12700
Eq. Temperature
1,350K
(1077 °C)
Insolation (S⊕)
554.00
Earth = 1.00
Earth Similarity (ESI)
0.075
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Yee et al. 2025Instrument
TESS CCD Array
Publication
2025-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2025 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-5322
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,692 K — cooler than the Sun (5,778 K)
Estimated Age
9.70 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.462 R☉
Stellar Mass
0.998 M☉
Metallicity [Fe/H]
-0.05
Extended Stellar Properties
Surface gravity (log g)
4.110 dex
Stellar density
0.456 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.069 mas
Total Proper Motion
12.637 mas/yr
PM Right Ascension
-10.73 mas/yr
PM Declination
6.67 mas/yr
Galactic Cartesian (pc)
x = 0.963 · y = 0.110 · z = 0.248
Equatorial (J2000)
RA 6.52934° · Dec 14.33643°
Galactic ℓ, b
113.731° · -48.082°
Ecliptic λ, β
11.710° · 10.565°
HTM-20 index
1362292576
Similar Worlds
NGTS-3 A b
Gas Giant · G-type yellow (Sun-like)
Radius 16.59 R⊕ · 2,426.5 ly
CoRoT-1 b
Gas Giant · G-type yellow (Sun-like)
Radius 16.70 R⊕ · 2,569.8 ly
WASP-183 b
Gas Giant · G-type yellow (Sun-like)
Radius 16.48 R⊕ · 1,061.2 ly
TOI-2295 b
Gas Giant · G-type yellow (Sun-like)
Radius 16.48 R⊕ · 411.9 ly
TOI-3023 b
Gas Giant · G-type yellow (Sun-like)
Radius 16.43 R⊕ · 1,271.7 ly
CoRoT-2 b
Gas Giant · G-type yellow (Sun-like)
Radius 16.43 R⊕ · 695.6 ly